John p



(NoMbdeL) J. P. CLARK, Jr.

WINDOW BLIND.

Patented Nov. 11, 1890.

WITNESSES:

S Y N W U A UNITED STATES PATENT OFFICEo JOHN P. CLARK, JR, on JACKSON,MICHIGAN.

WlNDOW BLlND.

SPECIFICATION forming part of Letters Patent No. 440,238, dated November11, 1890.

Application filed November 26, 1889. Serial No. 331,669. (No model.)

To aZZ whom it may concern:

Be it known that 1, JOHN P. CLARK, J r., of Jackson, in the county ofJackson and State of Michigan, have invented a new and usefulImprovement in Window-Blinds, of which the following is a full, clear,and exact description.

My invention relates to improvements in inside blinds for windows; andit consists in the construction and combination of parts as hereinafterdescribed and claimed.

The objects of my invention are to provide a cheap, convenient, andsubstantial inside blind for a window.

Reference is to be had to the accompanying drawings, forming apart ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is an elevation of the inside of a window having the improvedblind. Fig. 2 is asectional side elevation of the window-frame and thesashes, taken on the line 2 2 in Fig. 1, the blind being shown as open;and Fig. 3 is a sectional plan view of one of the blinds and thewindow-frame to which it is attached.

A A are the stiles of a window frame or casement, A the cap-platetherefor, and A \Vithin the frame the sashes a a" the sub-sill. areadapted to slide in the usual way, or they may be hinged together andadapted to swing inwardly, as I do not wish to limit the application ofthe blinds to any particular type of window.

Upon the stiles A inner blinds B are secured by hinges, said blindsbeing preferably constructed of narrow strips of board 0; or lathingmaterial may be utilized in their man ufacture, if desired. Said stripsare of sufficient length to extend from the cap-plate to the sub-sill ofthe window-frame, and are hinged together at b, so as to adapt them tofold properly together when the blind is opened.

Any suitable number of the vertical strips 0 are employed, and they arelongitudinally grooved, as shown in Figs. 1 and 3, whereby a corrugatedsurface is produced on each side of the blind strips, the grooves on oneside alternating with those of the opposite side, so as to produce aserpentine effect in cross-section, as shown in Fig. 3. This plan ofconstruction lightens the material, ornaments the blind strips, and alsoserves to prevent them from warping or twisting out of correct shape.

There may be one or two blinds provided for a window. Two of equal widthare preferably employed and meet at the center of the window whenclosed.

To afford a substantial connection of the blinds to the stiles of awindow, they are each connected to vertical bars d by hinges d, and thebars are secured to the window-stiles by hinges 6, attached to the barsand stiles at right angles to the hinges 02, said hinges being securedto the flat sides of the adjacent blind-strips 0, whereby a moresubstantial connection is provided than would be effected if they wereput upon the edges of the same.

By connecting the blinds B to the bars (1 and connecting the bars to thestiles A of the window-frame greater strength is afforded, a neat finishis produced, and the blinds are adapted to fold fiat against the wall ofthe apartment when opened, as shown in Fig. 3.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The combination, with a window-frame and sash therein, of avertically-slatted blind com-

